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SACSI was a national program that helped establish the value of multiagency, federal-local partnerships in responding to gun
crime. All but one of the SACSI sites targeted homicide, youth violence and firearms violence. SACSI attempted to replicate
in other cities the best practices from Boston's Operation Ceasefire: multiagency collaboration, strategic problem solving
and action research.

Researchers found that — if well implemented — the SACSI approach reduced violent crime in the targeted communities, sometimes
by as much as 50 percent.

Key elements of the SACSI strategy were:

Leadership by local U.S. Attorneys' Offices within a collaborative, multiagency partnership.

Integration of researchers into planning and execution of intervention strategies.